Chapter 21 Clickers

ConceptualIntegrated Science

Second Edition

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Ecology

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A group of individuals of a single species that lives in a specific area is called a(n)

a) ecosystem.

b) family.

c) population.

d) community.

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A group of individuals of a single species that lives in a specific area is called a(n)

a) ecosystem.

b) family.

c) population.

d) community.

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Which of the following would be a community-level question in ecology?

a) Which organisms are producers on an African plain?

b) Which males in a species of woodpecker mate with the females?

c) How does heavy rainfall affect the survival and reproduction of living things in Yosemite National Park?

d) How do amphibians in the Appalachian mountains respond to pollution?

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Which of the following would be a community-level question in ecology?

a) Which organisms are producers on an African plain?

b) Which males in a species of woodpecker mate with the females?

c) How does heavy rainfall affect the survival and reproduction of living things in Yosemite National Park?

d) How do amphibians in the Appalachian mountains respond to pollution?

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Which of the following situations is most likely to result in exponential growth?

a) Introduction of a small population of trout to a lake without predators or competitors

b) Overstocking trout in a lake

c) Disease spreading through a population of trout

d) Introduction of trout into a lake with many predators

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Which of the following situations is most likely to result in exponential growth?

a) Introduction of a small population of trout to a lake without predators or competitors

b) Overstocking trout in a lake

c) Disease spreading through a population of trout

d) Introduction of trout into a lake with many predators

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What is carrying capacity?

a) The ideal number of individuals or population density in a habitat

b) The usual number of individuals or population density the habitat supports

c) The minimum number of individuals or population density the habitat can support

d) The maximum number of individuals or population density the habitat can support

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What is carrying capacity?

a) The ideal number of individuals or population density in a habitat

b) The usual number of individuals or population density the habitat supports

c) The minimum number of individuals or population density the habitat can support

d) The maximum number of individuals or population density the habitat can support

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A blue whale is an example of

a) a species with Type I survivorship.

b) a species with Type II survivorship.

c) a species with Type III survivorship.

d) a species that can vary its life history strategy based on environmental conditions.

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A blue whale is an example of

a) a species with Type Isurvivorship.

b) a species with Type IIsurvivorship.

c) a species with Type IIIsurvivorship.

d) a species that can varyits life history strategybased on environmentalconditions.

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In the 21st Century, human population size is expected

a) to begin a slow decline.

b) to grow more and more quickly.

c) to continue to grow, but more slowly than in the past.

d) to crash.

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In the 21st Century, human population size is expected

a) to begin a slow decline.

b) to grow more and more quickly.

c) to continue to grow, but more slowly than in the past.

d) to crash.

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During a demographic transition,

a) death rates decline first, followed by birth rates.

b) birth rates decline first, followed by death rates.

c) birth rates decline, but death rates stay the same.

d) death rates and birth rates decline simultaneously.

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During a demographic transition,

a) death rates decline first, followed by birth rates.

b) birth rates decline first, followed by death rates.

c) birth rates decline, but death rates stay the same.

d) death rates and birth rates decline simultaneously.

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What role do hummingbirds play in a food chain? (Hint: They eat nectar made by plants.)

a) Producers

b) Primary consumers

c) Secondary consumers

d) Decomposers

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What role do hummingbirds play in a food chain? (Hint: They eat nectar made by plants.)

a) Producers

b) Primary consumers

c) Secondary consumers

d) Decomposers

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What form of symbiosis benefits one species of an interaction while having no effect on the other?

a) Mutualism

b) Parasitism

c) Symbiosis

d) Commensalism

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What form of symbiosis benefits one species of an interaction while having no effect on the other?

a) Mutualism

b) Parasitism

c) Symbiosis

d) Commensalism

Explanation:Commensalism is a form of symbiosis that benefitsone species of an interaction while having no effect onthe other. Mutualism benefits both species. Parasitismbenefits one species at the expense of the other.

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Which biome is warm, moderately dry, grassy, and tropical?

a) Tundra

b) Coniferous forest

c) Chaparral

d) Savanna

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Which biome is warm, moderately dry, grassy, and tropical?

a) Tundra

b) Coniferous forest

c) Chaparral

d) Savanna

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Which of the following describes a habitat where a river joins an ocean?

a) Intertidal zone

b) Estuary

c) Coral reef

d) Benthic zone

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Which of the following describes a habitat where a river joins an ocean?

a) Intertidal zone

b) Estuary

c) Coral reef

d) Benthic zone

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Which of the following biogeochemical cycles relies on bacteria to convert an element to usable form?

a) Nitrogen cycle

b) Water cycle

c) Carbon cycle

d) Phosphorous cycle

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Which of the following biogeochemical cycles relies on bacteria to convert an element to usable form?

a) Nitrogen cycle

b) Water cycle

c) Carbon cycle

d) Phosphorous cycle

Explanation:In order for living organisms to make use of nitrogen, it has to be converted into usable form. Living organisms rely on bacteria to accomplish this transformation.

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True or false?: The amount of organic matter in an ecosystem is its primary productivity.

a) True

b) False

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True or false?: The amount of organic matter in an ecosystem is its primary productivity.

a) True

b) False

Explanation:The amount of organic matter in an ecosystem is its biomass.

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In an energy pyramid, there is less energy at the top of the pyramid because

a) not all the organisms at one level of the food chain are eaten by organisms at the next level of the food chain.

b) energy is lost to the environment as heat as organisms go about their activities.

c) some energy is lost in feces.

d) all of the above.

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In an energy pyramid, there is less energy at the top of the pyramid because

a) not all the organisms at one level of the food chain are eaten by organisms at the next level of the food chain.

b) energy is lost to the environment as heat as organisms go about their activities.

c) some energy is lost in feces.

d) all of the above.

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Every chemical reaction involves

a) maintaining body systems.

b) losing energy to the environment.

c) the destruction of a small amount of matter.

d) all of the above.

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Every chemical reaction involves

a) maintaining body systems.

b) losing energy to the environment.

c) the destruction of a small amount of matter.

d) all of the above.

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Which species can survive with few nutrients and little existing organic matter?

a) Climax community species

b) Pioneer species

c) Native species

d) None of the above

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Which species can survive with few nutrients and little existing organic matter?

a) Climax community species

b) Pioneer species

c) Native species

d) None of the above

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According to the intermediate disturbance hypothesis,

a) regular disturbances limit biodiversity by destroying habitat.

b) regular disturbances encourage the invasion of nonnative species.

c) regular disturbances, if not too extreme, actually contribute to biodiversity.

d) all of the above.

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According to the intermediate disturbance hypothesis,

a) regular disturbances limit biodiversity by destroying habitat.

b) regular disturbances encourage the invasion of nonnative species.

c) regular disturbances, if not too extreme, actually contribute to biodiversity.

d) all of the above.